Plant Parasites of Europe

leafminers, galls and fungi

Peronospora mayorii

Peronospora mayorii Gäumann, 1923

on Vicia

Peronospora mayorii on Vicia cracca

Vicia cracca, Belgium, prov. Antwerp, Meerhout © Carina Van Steenwinkel: upper side infected leaf

Peronospora mayorii on Vicia cracca


Peronospora mayorii conidia and conidiophore

conidiophore with conidia (congo red staining)


leaves pale, may be disfigured. Underside with a brownish-violet down, consisting of 0.7 mm high erect conidiophores that apically several times are dichotomously branching, each terminal branch ending in a conidium.

host plants

Fabaceae, narrowly monophagous

Vicia cracca, pannonica.


Blumer (1946a), Brandenburger (1985a: 322), Buhr (1965a), Chater, Woods, Stringer, ao (2020a), Doppelbaur, Huber & Poelt (1965a), Göker, García-Blázquez, Voglmayr ao (2009a), Klenke & Scholler (2015a), Kruse (2014a), Jage, Klenke, Kruse ao (2017a), Müller & Kokeš (2008a), Mułenko, Kozłowska, Bacigálová ao (2014a), Săvulescu (1948a), Tomasi (2014a), Voglmayr (2003a).

Last modified 9.x.2022